So you are arguing that you made something public on facebook, but you didn't expect it to be that public? It looks like people who reject/don't use facebook due to privacy concerns do so because they don't understand the implications of what they put there. Personally, if I were to be concerned about privacy, I'd just make some research to understand what is and isn't public and how to use the product overall, but I suppose one could be pissed off at facebook for not being clearer about who can or could see what you put in there (even though they constantly try to improve this). Either way, the argument "I don't use facebook because I'm concerned about the data they extract from me" is flawed and irrational, because facebook won't know anything you don't explicitly tell to it. I still hear that argument from some people every now and then and I can't help but think that they just don't understand and did not want to make an effort in understanding facebook.